[Chapel Merge] Allow using findUndocumentedSymbols without CHPL_HOME being set

Branch: refs/heads/main
Revision: 3e8a86b54ae0e6f1502deabcc0ae1f9e708a0a3d
Author: jabraham17
Link: Allow using findUndocumentedSymbols without CHPL_HOME being set by jabraham17 · Pull Request #28632 · chapel-lang/chapel · GitHub
Log Message:
Allow using findUndocumentedSymbols without CHPL_HOME being set (#28632)

Improves findUndocumentedSymbols to work without CHPL_HOME being set

[Reviewed by @DanilaFe]

Compare: Comparing eac4f5e37184f698c968bb439e5716a5d5f09c24...50ac8bbcabbfd96b5198194e2e842ccecc51a7ee · chapel-lang/chapel · GitHub

Diff:
M tools/chpldoc/findUndocumentedSymbols
https://github.com/chapel-lang/chapel/pull/28632.diff